Morphology in semimagnetic Pb1-xMnxSe nanocrystals: Thermal annealing effects

被引：29

作者：

Dantas, N. O. ^{[1
]}

Silva, R. S. ^{[1
]}

Pelegrini, F. ^{[2
]}

Marques, G. E. ^{[3
]}

机构：

[1] Univ Fed Uberlandia, Inst Fis, LNMIS, BR-38400902 Uberlandia, MG, Brazil

[2] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil

[3] Univ Fed Sao Carlos, Dept Fis, BR-13560905 Sao Paulo, Brazil

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 26期

基金：

巴西圣保罗研究基金会;

关键词：

annealing; atomic force microscopy; exchange interactions (electron); IV-VI semiconductors; lead compounds; manganese compounds; nanostructured materials; nanotechnology; paramagnetic resonance; semimagnetic semiconductors; X-ray diffraction; QUANTUM DOTS; OPTICAL-PROPERTIES; CDSE; PHOTOLUMINESCENCE;

D O I：

10.1063/1.3159842

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Samples of Pb1-xMnxSe nanocrystals were synthesized by fusion method and characterized by optical absorption, atomic force microscopy, x-ray diffraction, and electron paramagnetic resonance (EPR) techniques. Effects of Mn2(+) ion incorporation into PbSe nanocrystals are manifested by well resolved optical spectra for different concentrations of Mn. The EPR spectra of as grown and thermal annealed Pb1-xMnxSe samples show that the magnetic properties of these Mn-doped nanocrystals can be tuned by thermal processes using different annealing times.

引用

页数：3